Finding the Fourth Proportional to 6,506.01, 8,978.31 and 3,521.88

Step by Step Solution

1. Step 1: Write the proportion equation
   6,506.01 : 8,978.31 = 3,521.88 : x
2. Step 2: Convert to fraction form
   6,506.01/8,978.31 = 3,521.88/x
3. Step 3: Cross multiply
   6,506.01x = 8,978.31 × 3,521.88
4. Step 4: Simplify right side
   6,506.01x = 31,620,530.42
5. Step 5: Solve for x
   x = 31,620,530.42/6,506.01
6. Step 6: Final answer
   x = 4,860.20